There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

If a wheel has 54 spokes, how many spaces are there between the spokes?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

Why do people go to bed?

Can you find the least possible number such that

If the number is divided by 3, it gives the remainder of 1;
If the number is divided by 4, it gives the remainder of 2;
If the number is divided by 5, it gives the remainder of 3;
If the number is divided by 6, it gives the remainder of 4.

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?

2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

Why did the Girl throw the butter out of the window?

What Deficiency does the below rebus represent?

VIT_MIN

What does this mean?

CCCCCCC